Flashing the wrong firmware (e.g., mismatched resolution) can lead to a "flipped" image, solarized colors, or a completely bricked device.
Insert the USB into the TV, hold the power button, and plug in the power cord to trigger the update.
.bin (Binary file), which is flashed directly to the TV's SPI Flash IC (usually the 25Qxx series) or via USB if the bootloader is functional.